Machine for casting curved stereotype plates



C. WINKLER.

MACHINE FOR CASTING CURVED STEREOTYPE PLATES.

APPLICATION man JAN-20, I921.

1,413,446. Patented, Apr. 18, 1922.

UNHTE sr res 'GARL W KLERQOF ,BERNE, swirzEnLA'Nn.

"MACHINE non CASTING cURvEn sTnRnoTYPE'rnArEsL- 1 V To a'ZZ'whom itmay concern:

Be it known that I, CARL WINKLEn, a citizen of the Swiss Republic, residing atBerne,

in the Swiss Republic, have invented new-'- and useful Improvements-1n Machines for Casting Curved Stereotype Plates, (for which I have filed application in Germany 7 Sept. 8, 1919,) of which the following ,isa

freely from said edge. Preferably the back,

or lower, piece, by which the mould is closed, is pivoted at its ends, and by suitably shaping the surface against, which the back, or

lower, edge of the cast plate bears, said wall is so connected to the cast plate that when opening the mould it will be tilted with the plate and thus release the matri'x'fadhering to said-plate. p p

By this arrangement and operation the plate can be easily lifted out of the open mould, and in addition to this the matrix is preserved.

In the acompanying drawing illustrating my invention by wayof example, 1

F ig. 1 is a section through themould in closed condition,

Fig. 2, a similar section of the mould in open condition,

Fig. 3, a plan'of the mould bed showing the matrix in position.

The mouldconsists ofthebed a and cope or core 6. In the bed a (Fig. 1) the matrix 0! provided with a metal border 0, consisting of two clamped pieces, is so placed that the metal border 0 fits tightly a groove 6 of the bed, whilst the side edges of the matrix fit loosely under the usual side segments 7, and the back edge of the matrix fits looselyunder the pivoted piece g. The inner edge of the piece g has a projection h, which, when aplate is cast, forms a groove in said plate, and enables the piece 9 to be more easily tilted about end pivots by the plate when the mould is opened.

In order to open the mould, that is, to

move the bed out of the position shown in Fig. 1 into that shown in Fig. 2 the middle Specificationof Letters itateut. Application area January 20, 1921. "serial nuisance.

or aideed ispulled down in' an' 'i nclined straight line, whilst'a pin-Z attachedto the I lowenedge of the -bed runs inl-a cam m, which-so guides the-bed that the late can swing about pins 92 on the. core.

by the plate, so that the edge of the matrix under the piece can follow the plate. The

. .w e fl' the connection of. the plate with thepiece g; by the projection h and groove z','.said piece g, on opening the mould, will be tilted opposite edgeof the matrix, which is provided with the metal border 0, also follows the movement. of the plate, f because the border can rise out ofthe groove in the bed. In this positlon shown in dotted lines in,

Fig. 2 the plate and matrix (with or with out theside pieces f),can be easily lifted off the core I) so that while thepins n serve to permit the plate to .be swung about the same so thatftheplate can be easily lifted oif of the same.

on the core, yet the pins n'only act as pegsv Outside the mould the matrix is V removed from the plate. If itis desired to cast a second plate from this matrix it is 8-70 v placedjin the bedagain, "and the metal 1 J border attached thereto, bv fitting tightly in 1 trix'will occupy exactly thesame position as in casting the first plate, so that all plates cast will keep good register. 7 I v by Lethat I claim and desire to secure ters Patent of the United States is 1. The improved mould forcastingcurved V I plates, comprising in combination an; in-

clined core,ja correspondingly inclinedbed, means to move the 'middlepart of said bed 7 in a straight line away fromsaid core to 1 I open the mould, means to'attaeh the cast plate to the upperedge of said core, and means to guide the lower edge of said bed in plateto swing about its upper edgein opening sald mould, substantially as, and for the purpose'set forth. 7 I V 2. The improved mould for castingcurved.

plates, comprising in combination an inclined core, a correspondingly inclinedbed, 7 means tomove the middle part of said bed: e

in a straight line away from'said col'e'to the groove in the bed, assures. that the, ma

, a path permitting thelower edge of the cast Y open the mould, means to attach the cast plate to the upper edge of'said core, means to guide the lower edge of said bed in a path permitting thelower'edge ofcast'plate V to swing about its upperedge in opening said mould, and'a pivoted piece closingthe I V back end ofthe mould and adapted'to be I r tilted by the cast plate in opening the mould, substantially as, and for the purpose, set forth.

3. The improved mould for casting curved plates, comprising in combination an inclined core, a correspondingly inclined bed, means to move the middle part of said bed in a straight line away from said core to open the mould, means to attach the cast plate to the upper edge of said core, means to guide the lower edge of said bed in a path permitting the lower edge of the cast plate to swing about its upper edge in opening o. WINKLER.

YVitnesses:

S. G. TRIPP, H. HOLLERY. 

